Nemertoderma psammicola Sterrer, 1970 | Nov 8, 1964 | 0.5-2 m | fine sand | |
Nemertoderma psammicola Sterrer, 1970 | Jul-Oct, 1965 | 1-5 m | fine sand | |
Retronectes clio Sterrer & Rieger, 1974 | 1974 or earlier | 1.5 M | fine fairly clean sand | twelve specimens, four adults. |
Retronectes melpomene Sterrer & Rieger, 1974 | 1968 | 4 m | fine sand with detritus | four specimens, one adult. off Klubban Beach near Kristineberg. |
Paromalostomum fusculum Ax, 1952 | 1971 or earlier | | fine sand | single specimen found by W. Sterrer, 6 m from the coastline, 60 cm deep in the fine sand, Klubban-strand, Biologische Station Kristineberg. |
Paromalostomum dubium (de Beauchamp, 1927) | Aug 1948 | | gravel | Karling in Westblad 1953. |
Praeaphanostoma diatomovorum Atherton & Jondelius, 2022 | sometime 2011-2021 | 1-2.5 m | silty sand with organic content, medium sand at 1–1.5 m depth | |